A Trtdtife of B O DIES. Ctap. 23. 



of them fct on work by the current of the river, in which the 

 foundation oftheir machine was laid. That ac Toledo was to 

 force up water a great height from the river Tagus to the Alca- 

 y.ar (the Kings pallacc) that ftandech' upon a. high fteep hill 

 or rock, almoft perpendicular over the river. In the borrome ' 

 there was an indented wheel, which turning round with the 

 itream, gave motion at the fame time to the whole cngin; which 

 confiftcd of a multitude of little troughs or Iquare ladles fet one 

 over another in two parallel rows over againft one another, 

 from the bottome to the top, and upon two ieverall divided 

 frames of timber. Thcfc troughs were clofed at one end with 

 a travcrfe board to retain the water from running out there; 

 \\hichend being bigger then the reft of the trough, made it 

 fomewhat like a ladle; and the reft of it feemed to be the han- 

 , die with a channel in it, the little end of which channel or 

 trough was open to let the water paffe freely away. And thefc 

 troughs were fattened by an ax!etree in the middle of them, to 

 the frame of timber that went from the bottome iir? to the top: 

 fo that they could upon that center move at liberty, citherthe 

 ill ut end downwards, or the open end; like the beam of a ba- 

 lance. 



Now at a certain pofition of the root-\vheel(iffo I may call 

 it) all one fide of the machine funk down a little lower towards 

 the water, and the other was railed a little higher. Which mo- 

 tion was changed as foon as the ground-wheel had ended the 

 remnant of his revolution: for then the fide that was loweft be- 

 fore, fprung up, and the other funk down. And thus, the two 

 fides of the machine were like two legs that by turns trod the 

 water; as in the vintage men prefle grapes in a watte. Now the 

 troughs that were fattened to the timber which descended, turn- 

 ed that part of them downwards which was like a box fhut to 

 hold the water : and confequcntly , the open end was up in the 

 aire, like the arm of the balance unto which the lighteft fcale is 

 faftened: and in the mean time, the troughs upon the amending 

 timber, were moved by a contrary motion keeping their box 

 ends aloft, and letting the open ends incline downwardsrfo that 

 if any water were in them, it would let it run out; whereas the 

 others retained any that came into them. 



When you have made an image of this machine in your 



phantafie, 



